10 Quiet Side Projects Making Real Money in 2025

While everyone on Twitter is chasing the next AI wrapper or prompt marketplace, a post on Hacker News asked a much more grounded question: If you’re making more than $500/month from a side project in 2025, what are you building? The answers were refreshing. No hype. No “AI will change everything” slogans. Just small, specific problems solved well —often in niches most of us never think about. I…